68906554097 has 2 divisors, whose sum is σ = 68906554098. Its totient is φ = 68906554096.

The previous prime is 68906554081. The next prime is 68906554099. The reversal of 68906554097 is 79045560986.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68851660816 + 54893281 = 262396^2 + 7409^2 .

It is a cyclic number.

It is not a de Polignac number, because 68906554097 - 2⁴ = 68906554081 is a prime.

It is a super-2 number, since 2×68906554097² (a number of 22 digits) contains 22 as substring.

Together with 68906554099, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68906554099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34453277048 + 34453277049.

It is an arithmetic number, because the mean of its divisors is an integer number (34453277049).

Almost surely, 2^68906554097 is an apocalyptic number.

It is an amenable number.

68906554097 is a deficient number, since it is larger than the sum of its proper divisors (1).

68906554097 is an equidigital number, since it uses as much as digits as its factorization.

68906554097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16329600, while the sum is 59.

The spelling of 68906554097 in words is "sixty-eight billion, nine hundred six million, five hundred fifty-four thousand, ninety-seven".